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https://git.proxmox.com/git/grub2
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5dcdf93ad6
* grub-core/gnulib/getopt.c: Likewise. * grub-core/gnulib/getopt_int.h: Likewise. * grub-core/gnulib/regex.h: Likewise. * grub-core/gnulib/regex_internal.c: Likewise. * grub-core/gnulib/regex_internal.h: Likewise.
1193 lines
38 KiB
C
1193 lines
38 KiB
C
/* Getopt for GNU.
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NOTE: getopt is part of the C library, so if you don't know what
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"Keep this file name-space clean" means, talk to drepper@gnu.org
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before changing it!
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Copyright (C) 1987-1996, 1998-2004, 2006, 2008-2010 Free Software
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Foundation, Inc.
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This file is part of the GNU C Library.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef _LIBC
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# include <config.h>
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#endif
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#include "getopt.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#ifdef _LIBC
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# include <libintl.h>
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#else
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# include "gettext.h"
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# define _(msgid) gettext (msgid)
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#endif
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#if defined _LIBC && defined USE_IN_LIBIO
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# include <wchar.h>
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#endif
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/* This version of `getopt' appears to the caller like standard Unix `getopt'
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but it behaves differently for the user, since it allows the user
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to intersperse the options with the other arguments.
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As `getopt_long' works, it permutes the elements of ARGV so that,
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when it is done, all the options precede everything else. Thus
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all application programs are extended to handle flexible argument order.
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Using `getopt' or setting the environment variable POSIXLY_CORRECT
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disables permutation.
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Then the behavior is completely standard.
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GNU application programs can use a third alternative mode in which
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they can distinguish the relative order of options and other arguments. */
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#include "getopt_int.h"
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/* For communication from `getopt' to the caller.
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When `getopt' finds an option that takes an argument,
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the argument value is returned here.
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Also, when `ordering' is RETURN_IN_ORDER,
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each non-option ARGV-element is returned here. */
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char *optarg;
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/* Index in ARGV of the next element to be scanned.
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This is used for communication to and from the caller
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and for communication between successive calls to `getopt'.
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On entry to `getopt', zero means this is the first call; initialize.
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When `getopt' returns -1, this is the index of the first of the
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non-option elements that the caller should itself scan.
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Otherwise, `optind' communicates from one call to the next
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how much of ARGV has been scanned so far. */
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/* 1003.2 says this must be 1 before any call. */
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int optind = 1;
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/* Callers store zero here to inhibit the error message
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for unrecognized options. */
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int opterr = 1;
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/* Set to an option character which was unrecognized.
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This must be initialized on some systems to avoid linking in the
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system's own getopt implementation. */
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int optopt = '?';
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/* Keep a global copy of all internal members of getopt_data. */
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static struct _getopt_data getopt_data;
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#if defined HAVE_DECL_GETENV && !HAVE_DECL_GETENV
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extern char *getenv ();
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#endif
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#ifdef _LIBC
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/* Stored original parameters.
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XXX This is no good solution. We should rather copy the args so
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that we can compare them later. But we must not use malloc(3). */
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extern int __libc_argc;
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extern char **__libc_argv;
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/* Bash 2.0 gives us an environment variable containing flags
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indicating ARGV elements that should not be considered arguments. */
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# ifdef USE_NONOPTION_FLAGS
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/* Defined in getopt_init.c */
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extern char *__getopt_nonoption_flags;
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# endif
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# ifdef USE_NONOPTION_FLAGS
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# define SWAP_FLAGS(ch1, ch2) \
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if (d->__nonoption_flags_len > 0) \
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{ \
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char __tmp = __getopt_nonoption_flags[ch1]; \
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__getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
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__getopt_nonoption_flags[ch2] = __tmp; \
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}
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# else
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# define SWAP_FLAGS(ch1, ch2)
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# endif
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#else /* !_LIBC */
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# define SWAP_FLAGS(ch1, ch2)
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#endif /* _LIBC */
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/* Exchange two adjacent subsequences of ARGV.
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One subsequence is elements [first_nonopt,last_nonopt)
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which contains all the non-options that have been skipped so far.
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The other is elements [last_nonopt,optind), which contains all
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the options processed since those non-options were skipped.
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`first_nonopt' and `last_nonopt' are relocated so that they describe
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the new indices of the non-options in ARGV after they are moved. */
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static void
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exchange (char **argv, struct _getopt_data *d)
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{
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int bottom = d->__first_nonopt;
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int middle = d->__last_nonopt;
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int top = d->optind;
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char *tem;
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/* Exchange the shorter segment with the far end of the longer segment.
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That puts the shorter segment into the right place.
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It leaves the longer segment in the right place overall,
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but it consists of two parts that need to be swapped next. */
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#if defined _LIBC && defined USE_NONOPTION_FLAGS
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/* First make sure the handling of the `__getopt_nonoption_flags'
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string can work normally. Our top argument must be in the range
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of the string. */
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if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
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{
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/* We must extend the array. The user plays games with us and
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presents new arguments. */
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char *new_str = malloc (top + 1);
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if (new_str == NULL)
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d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
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else
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{
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memset (__mempcpy (new_str, __getopt_nonoption_flags,
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d->__nonoption_flags_max_len),
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'\0', top + 1 - d->__nonoption_flags_max_len);
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d->__nonoption_flags_max_len = top + 1;
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__getopt_nonoption_flags = new_str;
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}
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}
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#endif
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while (top > middle && middle > bottom)
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{
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if (top - middle > middle - bottom)
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{
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/* Bottom segment is the short one. */
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int len = middle - bottom;
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register int i;
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/* Swap it with the top part of the top segment. */
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for (i = 0; i < len; i++)
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{
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tem = argv[bottom + i];
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argv[bottom + i] = argv[top - (middle - bottom) + i];
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argv[top - (middle - bottom) + i] = tem;
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SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
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}
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/* Exclude the moved bottom segment from further swapping. */
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top -= len;
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}
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else
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{
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/* Top segment is the short one. */
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int len = top - middle;
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register int i;
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/* Swap it with the bottom part of the bottom segment. */
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for (i = 0; i < len; i++)
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{
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tem = argv[bottom + i];
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argv[bottom + i] = argv[middle + i];
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argv[middle + i] = tem;
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SWAP_FLAGS (bottom + i, middle + i);
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}
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/* Exclude the moved top segment from further swapping. */
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bottom += len;
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}
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}
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/* Update records for the slots the non-options now occupy. */
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d->__first_nonopt += (d->optind - d->__last_nonopt);
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d->__last_nonopt = d->optind;
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}
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/* Initialize the internal data when the first call is made. */
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static const char *
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_getopt_initialize (int argc _GL_UNUSED,
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char **argv _GL_UNUSED, const char *optstring,
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struct _getopt_data *d, int posixly_correct)
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{
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/* Start processing options with ARGV-element 1 (since ARGV-element 0
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is the program name); the sequence of previously skipped
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non-option ARGV-elements is empty. */
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d->__first_nonopt = d->__last_nonopt = d->optind;
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d->__nextchar = NULL;
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d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT");
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/* Determine how to handle the ordering of options and nonoptions. */
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if (optstring[0] == '-')
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{
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d->__ordering = RETURN_IN_ORDER;
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++optstring;
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}
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else if (optstring[0] == '+')
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{
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d->__ordering = REQUIRE_ORDER;
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++optstring;
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}
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else if (d->__posixly_correct)
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d->__ordering = REQUIRE_ORDER;
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else
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d->__ordering = PERMUTE;
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#if defined _LIBC && defined USE_NONOPTION_FLAGS
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if (!d->__posixly_correct
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&& argc == __libc_argc && argv == __libc_argv)
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{
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if (d->__nonoption_flags_max_len == 0)
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{
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if (__getopt_nonoption_flags == NULL
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|| __getopt_nonoption_flags[0] == '\0')
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d->__nonoption_flags_max_len = -1;
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else
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{
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const char *orig_str = __getopt_nonoption_flags;
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int len = d->__nonoption_flags_max_len = strlen (orig_str);
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if (d->__nonoption_flags_max_len < argc)
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d->__nonoption_flags_max_len = argc;
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__getopt_nonoption_flags =
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(char *) malloc (d->__nonoption_flags_max_len);
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if (__getopt_nonoption_flags == NULL)
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d->__nonoption_flags_max_len = -1;
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else
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memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
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'\0', d->__nonoption_flags_max_len - len);
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}
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}
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d->__nonoption_flags_len = d->__nonoption_flags_max_len;
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}
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else
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d->__nonoption_flags_len = 0;
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#endif
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return optstring;
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}
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/* Scan elements of ARGV (whose length is ARGC) for option characters
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given in OPTSTRING.
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If an element of ARGV starts with '-', and is not exactly "-" or "--",
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then it is an option element. The characters of this element
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(aside from the initial '-') are option characters. If `getopt'
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is called repeatedly, it returns successively each of the option characters
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from each of the option elements.
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If `getopt' finds another option character, it returns that character,
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updating `optind' and `nextchar' so that the next call to `getopt' can
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resume the scan with the following option character or ARGV-element.
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If there are no more option characters, `getopt' returns -1.
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Then `optind' is the index in ARGV of the first ARGV-element
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that is not an option. (The ARGV-elements have been permuted
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so that those that are not options now come last.)
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OPTSTRING is a string containing the legitimate option characters.
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If an option character is seen that is not listed in OPTSTRING,
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return '?' after printing an error message. If you set `opterr' to
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zero, the error message is suppressed but we still return '?'.
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If a char in OPTSTRING is followed by a colon, that means it wants an arg,
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so the following text in the same ARGV-element, or the text of the following
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ARGV-element, is returned in `optarg'. Two colons mean an option that
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wants an optional arg; if there is text in the current ARGV-element,
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it is returned in `optarg', otherwise `optarg' is set to zero.
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If OPTSTRING starts with `-' or `+', it requests different methods of
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handling the non-option ARGV-elements.
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See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
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Long-named options begin with `--' instead of `-'.
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Their names may be abbreviated as long as the abbreviation is unique
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or is an exact match for some defined option. If they have an
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argument, it follows the option name in the same ARGV-element, separated
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from the option name by a `=', or else the in next ARGV-element.
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When `getopt' finds a long-named option, it returns 0 if that option's
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`flag' field is nonzero, the value of the option's `val' field
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if the `flag' field is zero.
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The elements of ARGV aren't really const, because we permute them.
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But we pretend they're const in the prototype to be compatible
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with other systems.
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LONGOPTS is a vector of `struct option' terminated by an
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element containing a name which is zero.
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LONGIND returns the index in LONGOPT of the long-named option found.
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It is only valid when a long-named option has been found by the most
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recent call.
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If LONG_ONLY is nonzero, '-' as well as '--' can introduce
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long-named options. */
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int
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_getopt_internal_r (int argc, char **argv, const char *optstring,
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const struct option *longopts, int *longind,
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int long_only, struct _getopt_data *d, int posixly_correct)
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{
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int print_errors = d->opterr;
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if (argc < 1)
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return -1;
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d->optarg = NULL;
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if (d->optind == 0 || !d->__initialized)
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{
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if (d->optind == 0)
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d->optind = 1; /* Don't scan ARGV[0], the program name. */
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optstring = _getopt_initialize (argc, argv, optstring, d,
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posixly_correct);
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d->__initialized = 1;
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}
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else if (optstring[0] == '-' || optstring[0] == '+')
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optstring++;
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if (optstring[0] == ':')
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print_errors = 0;
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/* Test whether ARGV[optind] points to a non-option argument.
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Either it does not have option syntax, or there is an environment flag
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from the shell indicating it is not an option. The later information
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is only used when the used in the GNU libc. */
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#if defined _LIBC && defined USE_NONOPTION_FLAGS
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# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
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|| (d->optind < d->__nonoption_flags_len \
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&& __getopt_nonoption_flags[d->optind] == '1'))
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#else
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# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
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#endif
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if (d->__nextchar == NULL || *d->__nextchar == '\0')
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{
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/* Advance to the next ARGV-element. */
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/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
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moved back by the user (who may also have changed the arguments). */
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if (d->__last_nonopt > d->optind)
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d->__last_nonopt = d->optind;
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if (d->__first_nonopt > d->optind)
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d->__first_nonopt = d->optind;
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|
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if (d->__ordering == PERMUTE)
|
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{
|
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/* If we have just processed some options following some non-options,
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exchange them so that the options come first. */
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|
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if (d->__first_nonopt != d->__last_nonopt
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&& d->__last_nonopt != d->optind)
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exchange ((char **) argv, d);
|
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else if (d->__last_nonopt != d->optind)
|
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d->__first_nonopt = d->optind;
|
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|
||
/* Skip any additional non-options
|
||
and extend the range of non-options previously skipped. */
|
||
|
||
while (d->optind < argc && NONOPTION_P)
|
||
d->optind++;
|
||
d->__last_nonopt = d->optind;
|
||
}
|
||
|
||
/* The special ARGV-element `--' means premature end of options.
|
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Skip it like a null option,
|
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then exchange with previous non-options as if it were an option,
|
||
then skip everything else like a non-option. */
|
||
|
||
if (d->optind != argc && !strcmp (argv[d->optind], "--"))
|
||
{
|
||
d->optind++;
|
||
|
||
if (d->__first_nonopt != d->__last_nonopt
|
||
&& d->__last_nonopt != d->optind)
|
||
exchange ((char **) argv, d);
|
||
else if (d->__first_nonopt == d->__last_nonopt)
|
||
d->__first_nonopt = d->optind;
|
||
d->__last_nonopt = argc;
|
||
|
||
d->optind = argc;
|
||
}
|
||
|
||
/* If we have done all the ARGV-elements, stop the scan
|
||
and back over any non-options that we skipped and permuted. */
|
||
|
||
if (d->optind == argc)
|
||
{
|
||
/* Set the next-arg-index to point at the non-options
|
||
that we previously skipped, so the caller will digest them. */
|
||
if (d->__first_nonopt != d->__last_nonopt)
|
||
d->optind = d->__first_nonopt;
|
||
return -1;
|
||
}
|
||
|
||
/* If we have come to a non-option and did not permute it,
|
||
either stop the scan or describe it to the caller and pass it by. */
|
||
|
||
if (NONOPTION_P)
|
||
{
|
||
if (d->__ordering == REQUIRE_ORDER)
|
||
return -1;
|
||
d->optarg = argv[d->optind++];
|
||
return 1;
|
||
}
|
||
|
||
/* We have found another option-ARGV-element.
|
||
Skip the initial punctuation. */
|
||
|
||
d->__nextchar = (argv[d->optind] + 1
|
||
+ (longopts != NULL && argv[d->optind][1] == '-'));
|
||
}
|
||
|
||
/* Decode the current option-ARGV-element. */
|
||
|
||
/* Check whether the ARGV-element is a long option.
|
||
|
||
If long_only and the ARGV-element has the form "-f", where f is
|
||
a valid short option, don't consider it an abbreviated form of
|
||
a long option that starts with f. Otherwise there would be no
|
||
way to give the -f short option.
|
||
|
||
On the other hand, if there's a long option "fubar" and
|
||
the ARGV-element is "-fu", do consider that an abbreviation of
|
||
the long option, just like "--fu", and not "-f" with arg "u".
|
||
|
||
This distinction seems to be the most useful approach. */
|
||
|
||
if (longopts != NULL
|
||
&& (argv[d->optind][1] == '-'
|
||
|| (long_only && (argv[d->optind][2]
|
||
|| !strchr (optstring, argv[d->optind][1])))))
|
||
{
|
||
char *nameend;
|
||
const struct option *p;
|
||
const struct option *pfound = NULL;
|
||
int exact = 0;
|
||
int ambig = 0;
|
||
int indfound = -1;
|
||
int option_index;
|
||
|
||
for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
|
||
/* Do nothing. */ ;
|
||
|
||
/* Test all long options for either exact match
|
||
or abbreviated matches. */
|
||
for (p = longopts, option_index = 0; p->name; p++, option_index++)
|
||
if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
|
||
{
|
||
if ((unsigned int) (nameend - d->__nextchar)
|
||
== (unsigned int) strlen (p->name))
|
||
{
|
||
/* Exact match found. */
|
||
pfound = p;
|
||
indfound = option_index;
|
||
exact = 1;
|
||
break;
|
||
}
|
||
else if (pfound == NULL)
|
||
{
|
||
/* First nonexact match found. */
|
||
pfound = p;
|
||
indfound = option_index;
|
||
}
|
||
else if (long_only
|
||
|| pfound->has_arg != p->has_arg
|
||
|| pfound->flag != p->flag
|
||
|| pfound->val != p->val)
|
||
/* Second or later nonexact match found. */
|
||
ambig = 1;
|
||
}
|
||
|
||
if (ambig && !exact)
|
||
{
|
||
if (print_errors)
|
||
{
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
char *buf;
|
||
|
||
if (__asprintf (&buf, _("%s: option '%s' is ambiguous\n"),
|
||
argv[0], argv[d->optind]) >= 0)
|
||
{
|
||
_IO_flockfile (stderr);
|
||
|
||
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
||
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
||
|
||
__fxprintf (NULL, "%s", buf);
|
||
|
||
((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
||
_IO_funlockfile (stderr);
|
||
|
||
free (buf);
|
||
}
|
||
#else
|
||
fprintf (stderr, _("%s: option '%s' is ambiguous\n"),
|
||
argv[0], argv[d->optind]);
|
||
#endif
|
||
}
|
||
d->__nextchar += strlen (d->__nextchar);
|
||
d->optind++;
|
||
d->optopt = 0;
|
||
return '?';
|
||
}
|
||
|
||
if (pfound != NULL)
|
||
{
|
||
option_index = indfound;
|
||
d->optind++;
|
||
if (*nameend)
|
||
{
|
||
/* Don't test has_arg with >, because some C compilers don't
|
||
allow it to be used on enums. */
|
||
if (pfound->has_arg)
|
||
d->optarg = nameend + 1;
|
||
else
|
||
{
|
||
if (print_errors)
|
||
{
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
char *buf;
|
||
int n;
|
||
#endif
|
||
|
||
if (argv[d->optind - 1][1] == '-')
|
||
{
|
||
/* --option */
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
n = __asprintf (&buf, _("\
|
||
%s: option '--%s' doesn't allow an argument\n"),
|
||
argv[0], pfound->name);
|
||
#else
|
||
fprintf (stderr, _("\
|
||
%s: option '--%s' doesn't allow an argument\n"),
|
||
argv[0], pfound->name);
|
||
#endif
|
||
}
|
||
else
|
||
{
|
||
/* +option or -option */
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
n = __asprintf (&buf, _("\
|
||
%s: option '%c%s' doesn't allow an argument\n"),
|
||
argv[0], argv[d->optind - 1][0],
|
||
pfound->name);
|
||
#else
|
||
fprintf (stderr, _("\
|
||
%s: option '%c%s' doesn't allow an argument\n"),
|
||
argv[0], argv[d->optind - 1][0],
|
||
pfound->name);
|
||
#endif
|
||
}
|
||
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
if (n >= 0)
|
||
{
|
||
_IO_flockfile (stderr);
|
||
|
||
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
||
((_IO_FILE *) stderr)->_flags2
|
||
|= _IO_FLAGS2_NOTCANCEL;
|
||
|
||
__fxprintf (NULL, "%s", buf);
|
||
|
||
((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
||
_IO_funlockfile (stderr);
|
||
|
||
free (buf);
|
||
}
|
||
#endif
|
||
}
|
||
|
||
d->__nextchar += strlen (d->__nextchar);
|
||
|
||
d->optopt = pfound->val;
|
||
return '?';
|
||
}
|
||
}
|
||
else if (pfound->has_arg == 1)
|
||
{
|
||
if (d->optind < argc)
|
||
d->optarg = argv[d->optind++];
|
||
else
|
||
{
|
||
if (print_errors)
|
||
{
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
char *buf;
|
||
|
||
if (__asprintf (&buf, _("\
|
||
%s: option '--%s' requires an argument\n"),
|
||
argv[0], pfound->name) >= 0)
|
||
{
|
||
_IO_flockfile (stderr);
|
||
|
||
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
||
((_IO_FILE *) stderr)->_flags2
|
||
|= _IO_FLAGS2_NOTCANCEL;
|
||
|
||
__fxprintf (NULL, "%s", buf);
|
||
|
||
((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
||
_IO_funlockfile (stderr);
|
||
|
||
free (buf);
|
||
}
|
||
#else
|
||
fprintf (stderr,
|
||
_("%s: option '--%s' requires an argument\n"),
|
||
argv[0], pfound->name);
|
||
#endif
|
||
}
|
||
d->__nextchar += strlen (d->__nextchar);
|
||
d->optopt = pfound->val;
|
||
return optstring[0] == ':' ? ':' : '?';
|
||
}
|
||
}
|
||
d->__nextchar += strlen (d->__nextchar);
|
||
if (longind != NULL)
|
||
*longind = option_index;
|
||
if (pfound->flag)
|
||
{
|
||
*(pfound->flag) = pfound->val;
|
||
return 0;
|
||
}
|
||
return pfound->val;
|
||
}
|
||
|
||
/* Can't find it as a long option. If this is not getopt_long_only,
|
||
or the option starts with '--' or is not a valid short
|
||
option, then it's an error.
|
||
Otherwise interpret it as a short option. */
|
||
if (!long_only || argv[d->optind][1] == '-'
|
||
|| strchr (optstring, *d->__nextchar) == NULL)
|
||
{
|
||
if (print_errors)
|
||
{
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
char *buf;
|
||
int n;
|
||
#endif
|
||
|
||
if (argv[d->optind][1] == '-')
|
||
{
|
||
/* --option */
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
n = __asprintf (&buf, _("%s: unrecognized option '--%s'\n"),
|
||
argv[0], d->__nextchar);
|
||
#else
|
||
fprintf (stderr, _("%s: unrecognized option '--%s'\n"),
|
||
argv[0], d->__nextchar);
|
||
#endif
|
||
}
|
||
else
|
||
{
|
||
/* +option or -option */
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
n = __asprintf (&buf, _("%s: unrecognized option '%c%s'\n"),
|
||
argv[0], argv[d->optind][0], d->__nextchar);
|
||
#else
|
||
fprintf (stderr, _("%s: unrecognized option '%c%s'\n"),
|
||
argv[0], argv[d->optind][0], d->__nextchar);
|
||
#endif
|
||
}
|
||
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
if (n >= 0)
|
||
{
|
||
_IO_flockfile (stderr);
|
||
|
||
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
||
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
||
|
||
__fxprintf (NULL, "%s", buf);
|
||
|
||
((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
||
_IO_funlockfile (stderr);
|
||
|
||
free (buf);
|
||
}
|
||
#endif
|
||
}
|
||
d->__nextchar = (char *) "";
|
||
d->optind++;
|
||
d->optopt = 0;
|
||
return '?';
|
||
}
|
||
}
|
||
|
||
/* Look at and handle the next short option-character. */
|
||
|
||
{
|
||
char c = *d->__nextchar++;
|
||
const char *temp = strchr (optstring, c);
|
||
|
||
/* Increment `optind' when we start to process its last character. */
|
||
if (*d->__nextchar == '\0')
|
||
++d->optind;
|
||
|
||
if (temp == NULL || c == ':' || c == ';')
|
||
{
|
||
if (print_errors)
|
||
{
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
char *buf;
|
||
int n;
|
||
#endif
|
||
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
n = __asprintf (&buf, _("%s: invalid option -- '%c'\n"),
|
||
argv[0], c);
|
||
#else
|
||
fprintf (stderr, _("%s: invalid option -- '%c'\n"), argv[0], c);
|
||
#endif
|
||
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
if (n >= 0)
|
||
{
|
||
_IO_flockfile (stderr);
|
||
|
||
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
||
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
||
|
||
__fxprintf (NULL, "%s", buf);
|
||
|
||
((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
||
_IO_funlockfile (stderr);
|
||
|
||
free (buf);
|
||
}
|
||
#endif
|
||
}
|
||
d->optopt = c;
|
||
return '?';
|
||
}
|
||
/* Convenience. Treat POSIX -W foo same as long option --foo */
|
||
if (temp[0] == 'W' && temp[1] == ';')
|
||
{
|
||
char *nameend;
|
||
const struct option *p;
|
||
const struct option *pfound = NULL;
|
||
int exact = 0;
|
||
int ambig = 0;
|
||
int indfound = 0;
|
||
int option_index;
|
||
|
||
/* This is an option that requires an argument. */
|
||
if (*d->__nextchar != '\0')
|
||
{
|
||
d->optarg = d->__nextchar;
|
||
/* If we end this ARGV-element by taking the rest as an arg,
|
||
we must advance to the next element now. */
|
||
d->optind++;
|
||
}
|
||
else if (d->optind == argc)
|
||
{
|
||
if (print_errors)
|
||
{
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
char *buf;
|
||
|
||
if (__asprintf (&buf,
|
||
_("%s: option requires an argument -- '%c'\n"),
|
||
argv[0], c) >= 0)
|
||
{
|
||
_IO_flockfile (stderr);
|
||
|
||
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
||
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
||
|
||
__fxprintf (NULL, "%s", buf);
|
||
|
||
((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
||
_IO_funlockfile (stderr);
|
||
|
||
free (buf);
|
||
}
|
||
#else
|
||
fprintf (stderr,
|
||
_("%s: option requires an argument -- '%c'\n"),
|
||
argv[0], c);
|
||
#endif
|
||
}
|
||
d->optopt = c;
|
||
if (optstring[0] == ':')
|
||
c = ':';
|
||
else
|
||
c = '?';
|
||
return c;
|
||
}
|
||
else
|
||
/* We already incremented `d->optind' once;
|
||
increment it again when taking next ARGV-elt as argument. */
|
||
d->optarg = argv[d->optind++];
|
||
|
||
/* optarg is now the argument, see if it's in the
|
||
table of longopts. */
|
||
|
||
for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
|
||
nameend++)
|
||
/* Do nothing. */ ;
|
||
|
||
/* Test all long options for either exact match
|
||
or abbreviated matches. */
|
||
for (p = longopts, option_index = 0; p->name; p++, option_index++)
|
||
if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
|
||
{
|
||
if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
|
||
{
|
||
/* Exact match found. */
|
||
pfound = p;
|
||
indfound = option_index;
|
||
exact = 1;
|
||
break;
|
||
}
|
||
else if (pfound == NULL)
|
||
{
|
||
/* First nonexact match found. */
|
||
pfound = p;
|
||
indfound = option_index;
|
||
}
|
||
else if (long_only
|
||
|| pfound->has_arg != p->has_arg
|
||
|| pfound->flag != p->flag
|
||
|| pfound->val != p->val)
|
||
/* Second or later nonexact match found. */
|
||
ambig = 1;
|
||
}
|
||
if (ambig && !exact)
|
||
{
|
||
if (print_errors)
|
||
{
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
char *buf;
|
||
|
||
if (__asprintf (&buf, _("%s: option '-W %s' is ambiguous\n"),
|
||
argv[0], d->optarg) >= 0)
|
||
{
|
||
_IO_flockfile (stderr);
|
||
|
||
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
||
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
||
|
||
__fxprintf (NULL, "%s", buf);
|
||
|
||
((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
||
_IO_funlockfile (stderr);
|
||
|
||
free (buf);
|
||
}
|
||
#else
|
||
fprintf (stderr, _("%s: option '-W %s' is ambiguous\n"),
|
||
argv[0], d->optarg);
|
||
#endif
|
||
}
|
||
d->__nextchar += strlen (d->__nextchar);
|
||
d->optind++;
|
||
return '?';
|
||
}
|
||
if (pfound != NULL)
|
||
{
|
||
option_index = indfound;
|
||
if (*nameend)
|
||
{
|
||
/* Don't test has_arg with >, because some C compilers don't
|
||
allow it to be used on enums. */
|
||
if (pfound->has_arg)
|
||
d->optarg = nameend + 1;
|
||
else
|
||
{
|
||
if (print_errors)
|
||
{
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
char *buf;
|
||
|
||
if (__asprintf (&buf, _("\
|
||
%s: option '-W %s' doesn't allow an argument\n"),
|
||
argv[0], pfound->name) >= 0)
|
||
{
|
||
_IO_flockfile (stderr);
|
||
|
||
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
||
((_IO_FILE *) stderr)->_flags2
|
||
|= _IO_FLAGS2_NOTCANCEL;
|
||
|
||
__fxprintf (NULL, "%s", buf);
|
||
|
||
((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
||
_IO_funlockfile (stderr);
|
||
|
||
free (buf);
|
||
}
|
||
#else
|
||
fprintf (stderr, _("\
|
||
%s: option '-W %s' doesn't allow an argument\n"),
|
||
argv[0], pfound->name);
|
||
#endif
|
||
}
|
||
|
||
d->__nextchar += strlen (d->__nextchar);
|
||
return '?';
|
||
}
|
||
}
|
||
else if (pfound->has_arg == 1)
|
||
{
|
||
if (d->optind < argc)
|
||
d->optarg = argv[d->optind++];
|
||
else
|
||
{
|
||
if (print_errors)
|
||
{
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
char *buf;
|
||
|
||
if (__asprintf (&buf, _("\
|
||
%s: option '-W %s' requires an argument\n"),
|
||
argv[0], pfound->name) >= 0)
|
||
{
|
||
_IO_flockfile (stderr);
|
||
|
||
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
||
((_IO_FILE *) stderr)->_flags2
|
||
|= _IO_FLAGS2_NOTCANCEL;
|
||
|
||
__fxprintf (NULL, "%s", buf);
|
||
|
||
((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
||
_IO_funlockfile (stderr);
|
||
|
||
free (buf);
|
||
}
|
||
#else
|
||
fprintf (stderr, _("\
|
||
%s: option '-W %s' requires an argument\n"),
|
||
argv[0], pfound->name);
|
||
#endif
|
||
}
|
||
d->__nextchar += strlen (d->__nextchar);
|
||
return optstring[0] == ':' ? ':' : '?';
|
||
}
|
||
}
|
||
else
|
||
d->optarg = NULL;
|
||
d->__nextchar += strlen (d->__nextchar);
|
||
if (longind != NULL)
|
||
*longind = option_index;
|
||
if (pfound->flag)
|
||
{
|
||
*(pfound->flag) = pfound->val;
|
||
return 0;
|
||
}
|
||
return pfound->val;
|
||
}
|
||
d->__nextchar = NULL;
|
||
return 'W'; /* Let the application handle it. */
|
||
}
|
||
if (temp[1] == ':')
|
||
{
|
||
if (temp[2] == ':')
|
||
{
|
||
/* This is an option that accepts an argument optionally. */
|
||
if (*d->__nextchar != '\0')
|
||
{
|
||
d->optarg = d->__nextchar;
|
||
d->optind++;
|
||
}
|
||
else
|
||
d->optarg = NULL;
|
||
d->__nextchar = NULL;
|
||
}
|
||
else
|
||
{
|
||
/* This is an option that requires an argument. */
|
||
if (*d->__nextchar != '\0')
|
||
{
|
||
d->optarg = d->__nextchar;
|
||
/* If we end this ARGV-element by taking the rest as an arg,
|
||
we must advance to the next element now. */
|
||
d->optind++;
|
||
}
|
||
else if (d->optind == argc)
|
||
{
|
||
if (print_errors)
|
||
{
|
||
#if defined _LIBC && defined USE_IN_LIBIO
|
||
char *buf;
|
||
|
||
if (__asprintf (&buf, _("\
|
||
%s: option requires an argument -- '%c'\n"),
|
||
argv[0], c) >= 0)
|
||
{
|
||
_IO_flockfile (stderr);
|
||
|
||
int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
|
||
((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
||
|
||
__fxprintf (NULL, "%s", buf);
|
||
|
||
((_IO_FILE *) stderr)->_flags2 = old_flags2;
|
||
_IO_funlockfile (stderr);
|
||
|
||
free (buf);
|
||
}
|
||
#else
|
||
fprintf (stderr,
|
||
_("%s: option requires an argument -- '%c'\n"),
|
||
argv[0], c);
|
||
#endif
|
||
}
|
||
d->optopt = c;
|
||
if (optstring[0] == ':')
|
||
c = ':';
|
||
else
|
||
c = '?';
|
||
}
|
||
else
|
||
/* We already incremented `optind' once;
|
||
increment it again when taking next ARGV-elt as argument. */
|
||
d->optarg = argv[d->optind++];
|
||
d->__nextchar = NULL;
|
||
}
|
||
}
|
||
return c;
|
||
}
|
||
}
|
||
|
||
int
|
||
_getopt_internal (int argc, char **argv, const char *optstring,
|
||
const struct option *longopts, int *longind, int long_only,
|
||
int posixly_correct)
|
||
{
|
||
int result;
|
||
|
||
getopt_data.optind = optind;
|
||
getopt_data.opterr = opterr;
|
||
|
||
result = _getopt_internal_r (argc, argv, optstring, longopts,
|
||
longind, long_only, &getopt_data,
|
||
posixly_correct);
|
||
|
||
optind = getopt_data.optind;
|
||
optarg = getopt_data.optarg;
|
||
optopt = getopt_data.optopt;
|
||
|
||
return result;
|
||
}
|
||
|
||
/* glibc gets a LSB-compliant getopt.
|
||
Standalone applications get a POSIX-compliant getopt. */
|
||
#if _LIBC
|
||
enum { POSIXLY_CORRECT = 0 };
|
||
#else
|
||
enum { POSIXLY_CORRECT = 1 };
|
||
#endif
|
||
|
||
int
|
||
getopt (int argc, char *const *argv, const char *optstring)
|
||
{
|
||
return _getopt_internal (argc, (char **) argv, optstring,
|
||
(const struct option *) 0,
|
||
(int *) 0,
|
||
0, POSIXLY_CORRECT);
|
||
}
|
||
|
||
#ifdef _LIBC
|
||
int
|
||
__posix_getopt (int argc, char *const *argv, const char *optstring)
|
||
{
|
||
return _getopt_internal (argc, argv, optstring,
|
||
(const struct option *) 0,
|
||
(int *) 0,
|
||
0, 1);
|
||
}
|
||
#endif
|
||
|
||
|
||
#ifdef TEST
|
||
|
||
/* Compile with -DTEST to make an executable for use in testing
|
||
the above definition of `getopt'. */
|
||
|
||
int
|
||
main (int argc, char **argv)
|
||
{
|
||
int c;
|
||
int digit_optind = 0;
|
||
|
||
while (1)
|
||
{
|
||
int this_option_optind = optind ? optind : 1;
|
||
|
||
c = getopt (argc, argv, "abc:d:0123456789");
|
||
if (c == -1)
|
||
break;
|
||
|
||
switch (c)
|
||
{
|
||
case '0':
|
||
case '1':
|
||
case '2':
|
||
case '3':
|
||
case '4':
|
||
case '5':
|
||
case '6':
|
||
case '7':
|
||
case '8':
|
||
case '9':
|
||
if (digit_optind != 0 && digit_optind != this_option_optind)
|
||
printf ("digits occur in two different argv-elements.\n");
|
||
digit_optind = this_option_optind;
|
||
printf ("option %c\n", c);
|
||
break;
|
||
|
||
case 'a':
|
||
printf ("option a\n");
|
||
break;
|
||
|
||
case 'b':
|
||
printf ("option b\n");
|
||
break;
|
||
|
||
case 'c':
|
||
printf ("option c with value '%s'\n", optarg);
|
||
break;
|
||
|
||
case '?':
|
||
break;
|
||
|
||
default:
|
||
printf ("?? getopt returned character code 0%o ??\n", c);
|
||
}
|
||
}
|
||
|
||
if (optind < argc)
|
||
{
|
||
printf ("non-option ARGV-elements: ");
|
||
while (optind < argc)
|
||
printf ("%s ", argv[optind++]);
|
||
printf ("\n");
|
||
}
|
||
|
||
exit (0);
|
||
}
|
||
|
||
#endif /* TEST */
|